From what I understand there are 2 copies of this, one on the drone which is accessed via plugging in computer into the drone usb and the other one on the iPhone. I think you probably need ifunbox app to retrieve the file from the app or some other file interrogator for phone.

For ifunbox make sure the phone is unlocked. it won't transfer if the device is locked. I have it, but don't use it as it doesn't work when not connected to the internet. Not real fond of giving an application access to my phone while it is connected to the 'net. Who knows what else is being transferred off my device?

You can attach the iOS device to iTunes and in the "apps" tab there is an option at the bottom to share files, pick the DJI Pilot app and it will display the .txt files that are on the device. Just pick the ones you want and drag them to the desktop.

For ifunbox make sure the phone is unlocked. it won't transfer if the device is locked. I have it, but don't use it as it doesn't work when not connected to the internet. Not real fond of giving an application access to my phone while it is connected to the 'net. Who knows what else is being transferred off my device?

You can attach the iOS device to iTunes and in the "apps" tab there is an option at the bottom to share files, pick the DJI Pilot app and it will display the .txt files that are on the device. Just pick the ones you want and drag them to the desktop.